Hauer, a colonel within the Galactic Republic, was a male Human who served during the Galactic War. In approximately 3641 BBY, he found himself stationed at the High Security Section of the Belsavis prison, where he faced a significant uprising among the inmates. He requested assistance from another Republic citizen to stop the Rattataki from constructing an explosive device using power cells, and subsequently, he attempted to justify his participation in Project Noble Focus.